Chiral loop and LsigmaM predictions for phi->pi0etagamma
Escribano, R.
Original · EN
A prediction for the contributions of chiral loops and the LσM model to the radiative ϕ→π⁰ηγ decay mode is presented. The LσM is used as an appropriate framework for describing the pole effects of the a₀(980) scalar resonance. As a result, a better agreement with present available data is achieved for the higher part of the π⁰η invariant mass spectrum. For the branching ratio, a value of B(ϕ→π⁰ηγ)=(0.75--0.95)× 10⁻⁴ is found.
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